The term bibliomania is used to describe an obsessive-compulsive disorder involving the collecting of books to the point where social relations or health are damaged. One of several psychological disorders associated with books, bibliomania is characterized by the collecting of books which have no use to the collector nor any great instrinsic value to a genuine book collector. The purchase of multiple copies of the same book and edition and the accumulation of books beyond possible capacity of use or enjoyment are frequent symptoms of bibliomania.

Bibliomania is not to be confused with bibliophilia, which is the legitimate collecting of books and is not considered a clinical psychological disorder.